According to the National Transportation Safety Board, selfies may have contributed to a deadly 2014 plane crash in Colorado.

Pilot Amritpal Singh and his passenger were killed instantly when their two-seat Cessna 150 airplane crashed outside Denver last May.

Investigators found a GoPro camera in the crash debris. The video from the camera showed the pilot and his passenger taking selfies on their cell phones at low altitudes.

Trace Gallagher reported on "The Real Story" that a plane crash is rarely caused by single event, but rather a series of events. In this case, Gallagher said, the NTSB believes that taking selfies may have been the final straw.

Gallagher reported that although Singh had very little experience flying at night, he and a passenger took off after midnight and were flying around Front Range Airport.

Investigators say a GoPro camera found in the wreckage shows that during the flight, both Singh and his passenger were taking selfies with their cell phones. They believe that flash from the phone may have disoriented the pilot.

"The official name is 'spatial disorientation,' but the simple explanation is when you're flying and you can't see the horizon, your equilibrium gets thrown out of whack, and you see illusions," Gallagher explained. "For example, the plane could be turning hard left, the pilot feels like it's turning hard right, then tries to overcompensate and puts the plane into a stall or a spin, commonly referred to as a 'graveyard spin.'"

In the case of this crash, the pilot was flying at a low altitude, so he would have had very little time to recover, Gallagher said.

"Taking selfies is not against FAA regulations, but this is the first time the NTSB has blamed a crash on taking selfies," Gallagher said, noting there are no plans to release the GoPro video from the crash.